NL61769C - - Google Patents
Info
- Publication number
- NL61769C NL61769C NL61769DA NL61769C NL 61769 C NL61769 C NL 61769C NL 61769D A NL61769D A NL 61769DA NL 61769 C NL61769 C NL 61769C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
- G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL888486X | 1941-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL61769C true NL61769C (cs) |
Family
ID=19853838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL61769D NL61769C (cs) | 1941-11-20 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE448074A (cs) |
| FR (1) | FR888486A (cs) |
| NL (1) | NL61769C (cs) |
-
0
- BE BE448074D patent/BE448074A/fr unknown
- NL NL61769D patent/NL61769C/xx active
-
1942
- 1942-11-20 FR FR888486D patent/FR888486A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR888486A (fr) | 1943-12-14 |
| BE448074A (cs) |